Date Difference Calculator
Enter a start and end date to see the time between them in days, weeks, months, years and business days.
How Many Days Are Between Two Dates?
The date difference calculator shows the time between two dates in days, weeks, months and years. Use it to see how many days have passed since an event or how long is left until a target date.
Countdown and Days Remaining
Use the tool as a countdown to a date such as the end of military service, a wedding, an exam or a birth. Besides the total day count, the result is also shown in a form like '3 months 15 days'.
Legal Deadlines and Contract Tracking
Notice periods, leases and legal waiting periods are counted in days. Use this tool to find the exact time between two dates and check whether a 15-day or 30-day period has passed.
Leap Years and Month Lengths
Month lengths vary: some months have 30 days, some 31, and February has 29 days every four years. That is why manual date math often goes wrong. The calculator accounts for these differences automatically.
How to Use
Inputs
Select two dates: Start date and End date. The order does not matter; the calculator automatically treats the earlier date as the start and shows a direction warning.
Example Scenario
What is the difference between 1 January 2024 and 15 April 2026?
| Measure | Result |
|---|---|
| Start date | 1 January 2024 |
| End date | 15 April 2026 |
| Total days | 835 |
| Weeks / Remaining days | 119 weeks + 2 days |
| Years / Months / Days | 2 years, 3 months, 14 days |
| Business days | 597 |